Wire printhead with armature biasing mechanism

Details Wire printhead with armature biasing mechanism Wire printhead with armature biasing mechanism

1994-04-14

1995-10-03

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

40012423, B41J 2275

Patent

active

054546494

ABSTRACT:
A wire printhead comprising a plurality of electromagnets and a corresponding plurality of armatures, each provided with an actuator arm forming, with the juxtaposed armature to an electromagnet, a lever of first order for actuating an impression wire attached to a free end of the actuator arm, said lever being biased to the rest position by a flexurally pre-loaded leaf spring acting on the lever in a predetermined position with respect to the lever fulcrum, through a resilient element which defines the point of application to the lever of the force from the leaf spring.

REFERENCES:
patent: 3892175 (1975-07-01), Heindke et al.
patent: 4204778 (1980-05-01), Miyazawa et al.
patent: 4260270 (1981-04-01), Cavallari
patent: 4600321 (1986-07-01), Kwan
patent: 4643598 (1987-02-01), Pruski
patent: 4793252 (1988-12-01), Pilcher
patent: 4886381 (1989-12-01), Kersey
patent: 5000593 (1991-03-01), Gugel et al.
patent: 5054942 (1991-10-01), Bernardis et al.

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